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dc.contributor.authorSILVA, C. V. J.
dc.contributor.authorARAGÃO, L. E. O. C.
dc.contributor.authorYOUNG, P. J.
dc.contributor.authorESPIRITO-SANTO, F.
dc.contributor.authorBERENGUER, E.
dc.contributor.authorANDERSON, L. O.
dc.contributor.authorBRASIL, I.
dc.contributor.authorPONTES-LOPES, A.
dc.contributor.authorFERREIRA, J. N.
dc.contributor.authorWITHEY, K.
dc.contributor.authorFRANÇA, F.
dc.contributor.authorGRAÇA, P. M. L. A.
dc.contributor.authorKIRSTEN, L.
dc.contributor.authorXAUD, H. A. M.
dc.contributor.authorSALIMON, C.
dc.contributor.authorSCARANELLO, M. A.
dc.contributor.authorCASTRO, B.
dc.contributor.authorSEIXAS, M.
dc.contributor.authorFARIAS, R.
dc.contributor.authorBARLOW, J.
dc.date.accessioned2020-11-18T09:13:09Z-
dc.date.available2020-11-18T09:13:09Z-
dc.date.created2020-11-17
dc.date.issued2020
dc.identifier.citationEnvironmental Research Letters, v. 15, Article 114023, 2020.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1126660-
dc.descriptionWildfires in humid tropical forests have become more common in recent years, increasing the rates of tree mortality in forests that have not co-evolved with fire. Estimating carbon emissions from these wildfires is complex. Current approaches rely on estimates of committed emissions based on static emission factors through time and space, yet these emissions cannot be assigned to specific years, and thus are not comparable with other temporally-explicit emission sources. Moreover, committed emissions are gross estimates, whereas the long-term consequences of wildfires require an understanding of net emissions that accounts for post-fire uptake of CO2. Here, using a 30 year wildfire chronosequence from across the Brazilian Amazon, we calculate net CO2 emissions from Amazon wildfires by developing statistical models comparing post-fire changes in stem mortality, necromass decomposition and vegetation growth with unburned forest plots sampled at the same time. Over the 30 yr time period, gross emissions from combustion during the fire and subsequent tree mortality and decomposition were equivalent to 126.1 Mg CO2 ha−1 of which 73% (92.4 Mg CO2 ha−1) resulted from mortality and decomposition. These emissions were only partially offset by forest growth, with an estimated CO2 uptake of 45.0 Mg ha−1over the same time period. Our analysis allowed us to assign emissions and growth across years, revealing that net annual emissions peak 4 yr after forest fires. At present, Brazil's National Determined Contribution (NDC) for emissions fails to consider forest fires as a significant source, even though these are likely to make a substantial and long-term impact on the net carbon balance of Amazonia. Considering long-term post-fire necromass decomposition and vegetation regrowth is crucial for improving global carbon budget estimates and national greenhouse gases (GHG) inventories for tropical forest countries.
dc.language.isoeng
dc.rightsopenAccesseng
dc.titleEstimating the multi-decadal carbon deficit of burned Amazonian forests.
dc.typeArtigo de periódico
dc.subject.thesagroFloresta Tropical
dc.subject.thesagroMortalidade
dc.subject.thesagroCaule
dc.subject.thesagroCombustão
dc.subject.thesagroAbsorção
dc.subject.thesagroIncêndio Florestal
dc.subject.nalthesaurusWildfires
dc.subject.nalthesaurusTropical forests
dc.subject.nalthesaurusCombustion
riaa.ainfo.id1126660
riaa.ainfo.lastupdate2020-11-17
dc.identifier.doihttps://doi.org/10.1088/1748-9326/abb62c
dc.contributor.institutionCAMILA V. J. SILVA, LANCASTER UNIVERSITY
dc.contributor.institutionLUIZ E. O. C. ARAGÃO, INSTITUTO NACIONAL DE PESQUISAS ESPACIAISeng
dc.contributor.institutionPAUL J. YOUNG, LANCASTER UNIVERSITYeng
dc.contributor.institutionFERNANDO ESPIRITO-SANTO, UNIVERSITY OF LEICESTEReng
dc.contributor.institutionERIKA BERENGUER, LANCASTER UNIVERSITYeng
dc.contributor.institutionLIANA O. ANDERSON, CENTRO NACIONAL DE MONITORAMENTO E ALERTAS DE DESASTRES NATURAISeng
dc.contributor.institutionIZAIAS BRASIL, UNIVERSIDADE ESTADUAL DO MARANHÃOeng
dc.contributor.institutionALINE PONTES-LOPES, INSTITUTO NACIONAL DE PESQUISAS ESPACIAISeng
dc.contributor.institutionJOICE NUNES FERREIRA, CPATUeng
dc.contributor.institutionKIERAN WITHEY, LANCASTER UNIVERSITYeng
dc.contributor.institutionFILIPE FRANÇA, LANCASTER UNIVERSITYeng
dc.contributor.institutionPAULO M. L. A. GRAÇA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIAeng
dc.contributor.institutionLETICIA KIRSTEN, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIAeng
dc.contributor.institutionHARON ABRAHIM MAGALHAES XAUD, CPAF-RReng
dc.contributor.institutionCLEBER SALIMON, UNIVERSIDADE ESTADUAL DA PARAÍBAeng
dc.contributor.institutionMARCOS A. SCARANELLOeng
dc.contributor.institutionBRUNO CASTRO, INSTITUTO DE MANEJO E CERTIFICAÇÃO FLORESTAL E AGRÍCOLAeng
dc.contributor.institutionMARINA SEIXASeng
dc.contributor.institutionRENATO FARIAS, INSTITUTO CENTRO DE VIDAeng
dc.contributor.institutionJOS BARLOW, LANCASTER UNIVERSITY.eng
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